Cycl’Assist aims to be a webapp
to ease tracking and reporting issues with bike infrastructures while riding
your bike (any danger on the way such as holes in the ground, cars parked like
sh*t, road work, etc). You can think of it as Waze for bikes :) Version 0 …

My Cygnal app uses
OSM map tiles to render the map on which the
reports are shown. It is meant to be used in realtime, on your mobile phone,
mounted on your bike and there can often be some network issues in this setup.

There is a cycle-oriented OpenStreetMap render available, called
OpenCycleMap. Sadly, OpenCycleMap is not really
open (as in opensource) and it is not easy to report issues and get bug fixes.
Moreover, you cannot selfhost it and have to
pay after a given number of requests.

I recently started to have a deeper look into routing for bikes, on top of
OpenStreetMap data and came across
BRouter. This article is a follow-up to the
first and
second ones and it will quickly cover
how to write your own profile or extend a profile.